Baseball fans noticed a foreign substance on Mariners pitcher Yusei Kikuchi's hat
Pine Tar Rag Package
Yusei kikuchi hi-res stock photography and images - Alamy
Felix Hernandez ready to hold court again as he goes into Mariners Hall of Fame
Yusei Kikuchi strikes out 7, Mariners beat Rangers 6-3
Mariners pitcher Yusei Kikuchi walking around a day after scare: 'Much better than … expected
MLB: Toronto's Yusei Kikuchi (10-6) allowed one run and four hits in five-plus innings for his first win since Aug. 2. He was pulled because of a left upper trap muscle cramp
Seattle Mariners pitcher Yusei Kikuchi puts entire container of pine tar on his hat, nearly throws no-hitter, This is the Loop
Yusei kikuchi hi-res stock photography and images - Alamy
Felix Hernandez ready to hold court again as he goes into Mariners Hall of Fame